For Pete's Sake! Walk out of Paltform 2 of Forest Hill Station (or walk around under the railway bridge) Turn left onto Perry Vale, cross to the opposite side of the road. Pass EJ Carpets. If you hit the Cafe on the corner of Sunderland Rd you have gone too far. It is a tiny little shop front that says 24 Hour Bagels. It is next to an Afro Carribean hairdresser and barber.
I have never eaten there, so I have no idea if it is good or bad.